//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// UNSUPPORTED: libcpp-has-no-threads
// UNSUPPORTED: c++03, c++11

// This test requires the dylib support introduced in D68480, which shipped in macOS 11.0.
// XFAIL: use_system_cxx_lib && target={{.+}}-apple-macosx10.{{9|10|11|12|13|14|15}}

// <latch>

#include <latch>
#include <cassert>

#include "test_macros.h"

int main(int, char**)
{
  std::latch l(1);

  l.count_down();
  bool const b = l.try_wait();
  assert(b);

  return 0;
}
